Properties of the Number -26796

Twenty-Six Thousand Seven Hundred Ninety-Six

Basics

Value: -26797 → -26796 → -26795

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 7 × 11 × 29

Divisors: 1, 2, 3, 4, 6, 7, 11, 12, 14, 21

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: Yes

Heptagonal: No

Tetrahedral: No

Today's Target

9108 Try Today's Challenge

Representations

Binary: -110100010101100

Octal: -64254

Duodecimal: -13610

Hexadecimal: -68ac

Square: 718025616

Square Root: 163.69483803712322

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Doubly triangular numbers: a(n) = n*(n+1)*(n²+n+2)/8. A2817

a(0) = 2; for n >= 0, a(n+1) = a(n)*(a(n)+1)/2. A7501

Triangular numbers that are the product of two triangular numbers greater than 1. A188630

Tree generated by the triangular numbers: a(1) = 1; a(2n) = nontriangular(a(n)), a(2n+1) = triangular(a(n+1)), where triangular = A000217, nontriangular = A014132. A183079

Triangular numbers that are 7 times triangular numbers. A77400

Triangular numbers which are products of triangular numbers larger than 1. A68143

Numbers n such that σ(n) = 12*φ(n). A104902

Number of ways to write n as an ordered sum of 8 nonzero triangular numbers. A340953

Triangular numbers that are sums of two consecutive primes. A111163

a(n) = n*(n+1)*(7·n+2)/6. A255211